Peter Oppenheimer

Apple chief executive Tim Cook (centre), chief finance officer Peter Oppenheimer (left) and head of tax operations Philip Bullock are sworn in to testify at a Senate homeland security and governmental affairs investigations subcommittee hearing on offshore profit shifting and the US tax code, on Capitol Hill in Washington. Apple came under fire on Tuesday at the hearing over allegations it had kept billions of dollars in profits in Irish subsidiaries and paid little or no taxes to any government.